There are quiet moments where she catches small glimpses of him, the other Clark, the less fun Clark in her own Clark. She spends more time then she's willing to admit thinking about how different life would be if her Clark was the other one.
Her Clark is evil. Kills without thinking. Fucks every girl with perky tits he can find. He's a dick but he's always there, even if he keeps her waiting he always comes. He's the only person in her life that's never left her behind. He tells her everything. He spends hours talking about how one day he'll kill father and take over the world. Once she asked where she'd be once he's done it. "You'll be at my side" he replies. No hint of sarcasm. No underling ploy visible. He says it and she believes him.
She knows the other Clark is a hero, saving his world. But she doesn't care. She'd rather be here in this doomed place at his side than some peaceful place alone.